republic-os/legislation/us/states/co/2021a/hb-21-1317.md

---
type: "Bill"
title: "Regulating Marijuana Concentrates"
description: "The act requires the Colorado school of public health to do a systematic review of the scientific research related to the possible physical and mental health effects of high-potency THC marijuana and concentrates using only funding provided by the general assembly. The act creates a scientific review council (council) to review the report and make recommendations to the general assembly. Based on the research and findings, the Colorado school of public health shall produce a public education campaign for the general public, to be approved by the council, regarding the effect of high-potency THC marijuana on the developing brain and mental health.Current law requires a doctor to conduct a full assessment of the patient's medical history when making a medical marijuana recommendation. The act requires that assessment to include the patient's mental health history. If the recommending physician is not the patient's primary care physician, the act directs the recommending physician to review the records of a diagnosing physician or licensed mental health provider. When a practitioner makes a medical marijuana authorization, the practitioner must certify that authorization to the department of public health and environment (department). The act requires the certification to include:The date of issue and the effective date of the recommendation;"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2021A"
identifier: "HB 21-1317"
citation: "Colorado HB 21-1317 (2021A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Alec Garnett", "Chris Hansen", "Paul Lundeen", "Yadira Caraveo"]
version_count: 13
action_count: 17
vote_count: 7
first_action: "2021-05-14T06:00:00+00:00"
last_action: "2021-06-24T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/332dbe07-cce3-4ffa-a7f9-7f7a06fcab5c"
source_url: "http://leg.colorado.gov/bills/hb21-1317"
source_hash: "9343376da84cb8a0db42ddb7cf323ed4c517c4a4f7fadb5d046c5ebd7265b993"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-co"]
---

# Colorado HB 21-1317 (2021A) — Regulating Marijuana Concentrates

The act requires the Colorado school of public health to do a systematic review of the scientific research related to the possible physical and mental health effects of high-potency THC marijuana and concentrates using only funding provided by the general assembly. The act creates a scientific review council (council) to review the report and make recommendations to the general assembly. Based on the research and findings, the Colorado school of public health shall produce a public education campaign for the general public, to be approved by the council, regarding the effect of high-potency THC marijuana on the developing brain and mental health.Current law requires a doctor to conduct a full assessment of the patient's medical history when making a medical marijuana recommendation. The act requires that assessment to include the patient's mental health history. If the recommending physician is not the patient's primary care physician, the act directs the recommending physician to review the records of a diagnosing physician or licensed mental health provider. When a practitioner makes a medical marijuana authorization, the practitioner must certify that authorization to the department of public health and environment (department). The act requires the certification to include:The date of issue and the effective date of the recommendation;

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Amendment L.001** (committee substitute) — [source](http://coga.prod.acquia-sites.com/sites/default/files/html-attachments/c65306bdeb30a858872586d90071dd8a__hearing_summary/21HousePublic0518AttachC.pdf)
2. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_hb1317_s_app_005.pdf)
3. **Engrossed (05/26/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317_eng.pdf)
4. **Final Act (06/23/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317_enr.pdf)
5. **Introduced (05/14/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317_01.pdf)
6. **PA1 (05/19/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317pbh_01.pdf)
7. **PA2 (05/26/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317pbh.pdf)
8. **PA3 (06/01/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317sfin_01.pdf)
9. **PA4 (06/02/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317sfinsapp.pdf)
10. **Reengrossed (05/27/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317_ren.pdf)
11. **Rerevised (06/03/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317_rer.pdf)
12. **Revised (06/02/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1317_rev.pdf)
13. **Signed Act (06/24/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_1317_signed.pdf)

## Votes

- COW * — **35–0** (pass) · upper
- COW * — **28–7** (pass) · upper
- CONCUR — **65–0** (pass) · lower
- BILL — **56–8** (pass) · lower
- REPASS — **58–7** (pass) · lower
- BILL — **35–0** (pass) · upper
- AMEND — **35–0** (pass) · upper

## Sponsors

- Alec Garnett — primary (person)
- Chris Hansen — primary (person)
- Paul Lundeen — primary (person)
- Yadira Caraveo — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-06-24T06:00:00+00:00** Governor Signed `executive-signature`
- **2021-06-23T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2021-06-23T06:00:00+00:00** Signed by the Speaker of the House
- **2021-06-23T06:00:00+00:00** Signed by the President of the Senate
- **2021-06-08T06:00:00+00:00** House Considered Senate Amendments - Result was to Concur - Repass
- **2021-06-04T06:00:00+00:00** House Considered Senate Amendments - Result was to Laid Over Daily
- **2021-06-03T06:00:00+00:00** Senate Third Reading Passed with Amendments - Floor `passage, reading-3`
- **2021-06-02T06:00:00+00:00** Senate Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2021-06-02T06:00:00+00:00** Senate Committee on Appropriations Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2021-05-28T06:00:00+00:00** Senate Committee on Finance Refer Amended to Appropriations `referral-committee`
- **2021-05-27T06:00:00+00:00** Introduced In Senate - Assigned to Finance `introduction`
- **2021-05-27T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2021-05-26T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2021-05-25T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2021-05-20T06:00:00+00:00** House Committee on Finance Refer Unamended to Appropriations `referral-committee`
- **2021-05-18T06:00:00+00:00** House Committee on Public & Behavioral Health & Human Services Refer Amended to Finance `referral-committee`
- **2021-05-14T06:00:00+00:00** Introduced In House - Assigned to Public & Behavioral Health & Human Services `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/332dbe07-cce3-4ffa-a7f9-7f7a06fcab5c`. Confidence: reported (aggregated from official Colorado legislature records).